{"product_id":"mtc-bio-jumbo-fernbach-shaker-flasks","title":"MTC Bio Jumbo Fernbach Shaker Flasks – 2.8 and 5.0 L","description":"\u003cdiv style=\"max-width: 1400px; margin: 0 auto; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333; background: #fff;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-flask-jumbo-1.jpg?v=1790636675\" alt=\"MTC Bio F4086 complete flask\" style=\"width: 100%; max-width: 440px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%);\"\u003e\n\u003ch3 style=\"font-size: 1.15rem; font-weight: 400; margin: 0 0 20px 0;\"\u003e\u003cstrong\u003eBring baffled mixing to larger-volume shaker cultures.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eF4086 and F4087 are complete Jumbo Erlenmeyer\/Fernbach-style vessels made from styrene\/butadiene, with baffled bases and filtered vent caps. These are distinct from the smaller polycarbonate and PETG Erlenmeyer flasks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e2.8 \u0026amp; 5.0 L\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eNominal capacities\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003eBaffled\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eRibbed base\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e0.2 µm\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eVented cap membrane\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003eSAL 10⁻⁶\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eGamma sterile\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eDesigned for Your Workflow\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 28px 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eJumbo Fernbach format\u003c\/strong\u003e\u003cbr\u003eChoose 2.8 or 5.0 L nominal capacity for larger shaker workflows.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eBaffled mixing\u003c\/strong\u003e\u003cbr\u003eRibbed bottoms are designed to increase mixing efficiency and oxygenation.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eFiltered caps included\u003c\/strong\u003e\u003cbr\u003ePolypropylene screw caps feature 0.2 µm vent membranes.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eIndividually wrapped\u003c\/strong\u003e\u003cbr\u003eGamma-sterile complete vessels support controlled opening at the bench.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 1;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-flask-jumbo-2.jpg?v=1790636675\" alt=\"MTC Bio F4087 complete flask\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 2;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eSelect by material, capacity and compatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eDo not apply the smaller polycarbonate flask autoclave rating to styrene\/butadiene Jumbo flasks. Verify equipment clearance, clamp support, working fill and culture conditions before scaling a procedure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eChoose Your Configuration\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eF4086\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 2.8 L | Baffled | 6 per case\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eOrder unit:\u003c\/strong\u003e 6 flasks with caps per case\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eF4087\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 5.0 L | Baffled | 4 per case\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eOrder unit:\u003c\/strong\u003e 4 flasks with caps per case\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; columns: 2 260px;\"\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eLarger-volume suspension culture\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eShaker-based process development\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eMixing and aeration optimization\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eCulture scale-up evaluation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f9f9; border: 1px solid #e0e0e0; border-radius: 8px; padding: 24px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eSelection and Use Tip\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003eDo not apply the smaller polycarbonate flask autoclave rating to styrene\/butadiene Jumbo flasks. Verify equipment clearance, clamp support, working fill and culture conditions before scaling a procedure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding:24px 0\"\u003e\n\u003ch3\u003eRelated Flasks and Compatible Caps\u003c\/h3\u003e\n\u003cp\u003eFor these Jumbo vessels select replacement cap F4069 only. Smaller Erlenmeyer flasks use different materials and F4067\/F4068 caps.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/mtc-bio-erlenmeyer-shaker-flasks\"\u003eMTC Bio Erlenmeyer Shaker Flasks – 125 to 1000 mL\u003c\/a\u003e | \u003ca href=\"\/products\/mtc-bio-replacement-filtered-flask-caps\"\u003eMTC Bio Replacement Filtered Flask Caps – 10 per Pack\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-top: 1px solid #e0e0e0; margin-top: 40px; padding-top: 20px;\"\u003e\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"width: 100%; padding: 20px 0; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; font-weight: 600; margin: 0 0 16px 0;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre these complete vessels or caps?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eThese are complete Jumbo flasks with vented screw caps. F4086 contains six 2.8 L flasks per case; F4087 contains four 5.0 L flasks per case.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat material and base do the Jumbo flasks use?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eBoth are styrene\/butadiene with baffled, ribbed bottoms. They are not the polycarbonate or PETG material options offered in the smaller Erlenmeyer range.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre these supplied sterile?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes. MTC Bio states individual wrapping and gamma sterilization to SAL 10⁻⁶. The manufacturer also states RNase-, DNase-, pyrogen-, endotoxin- and human-DNA-free.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhich replacement filtered cap fits the Jumbo flasks?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eF4069 is explicitly listed by MTC Bio for both 2.8 and 5.0 L Jumbo flasks, F4086 and F4087. F4067 and F4068 are for smaller Erlenmeyer sizes and should not be substituted.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eCan I autoclave these Jumbo flasks?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eNo autoclavable claim is established here for styrene\/butadiene Jumbo flasks. The manufacturer’s 121°C, 15 psi, 30-minute statement applies to polycarbonate flasks, not these vessels.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eHow do these compare with Corning Fernbach-design flasks?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eCorning 431252 is a 3 L non-baffled polycarbonate Fernbach-design flask, four per case. MTC F4086 is 2.8 L, baffled styrene\/butadiene, six per case. Both use vent caps, but material, capacity, geometry and packaging differ. Do not assume identical culture performance, cap interchangeability or shaker fit.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eIs the nominal capacity the recommended culture fill?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eNo. Establish working volume, shaker orbit, speed and aeration for your culture. Nominal capacity alone does not define safe shaking fill or support requirements.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eHow is stock counted?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eInventory and price are per complete case, not per flask: six vessels for F4086 and four for F4087. Quantity one purchases one case.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eBrand names are trademarks of their respective owners. No OEM status, endorsement or universal interchangeability is implied.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"MTC Bio","offers":[{"title":"2.8 L | Baffled | 6 per case","offer_id":52789400207658,"sku":"BTS-F4086","price":330.4,"currency_code":"USD","in_stock":true},{"title":"5.0 L | Baffled | 4 per case","offer_id":52789400240426,"sku":"BTS-F4087","price":445.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-flask-jumbo-1.jpg?v=1790636675","url":"https:\/\/bluetigerscientific.com\/products\/mtc-bio-jumbo-fernbach-shaker-flasks","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}