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Flask 5000ml Erlenmeyer borosilicate glass

SKU: KL04008
EAN: 20000000541927
Brand:
Unit: pc
Stock qty: Pre-order

Delivery time (day): 7-14
Price:
49,90 €
Qty.: - +
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Flask 5000ml Erlenmeyer borosilicate glass

Usage: Ideal for large yeast starters using stir plates. Propagating yeast can take your beer to the next level, ensuring flavourful characters from the yeast. Instead of stressed out flavours that can occur when under pitching. If you are fermenting a lager we highly recommend doing large yeast starters to ensure the tastiness of your brew.

Features: Made from borosilicate science glass. Perfect for heating up DME for yeast starters. Suitable for use with gas stove top (not electric stoves).

Technical data: Capacity: 5000ml. Dimensions: L×W×H×Opening (mm): 220×220×370×45. Material: Borosilicate glass.

⚠️ Important: Though borosilicate glass has excellent thermal shock resistance, it must be handled with care. Cool all glassware slowly to prevent breakage. Do not take boiled flask directly from stovetop into ice water - allow to cool for a few minutes first. Do not boil flasks dry or heat above 140°C. Do not heat glassware that is etched, cracked, chipped, nicked, or scratched. Do not heat directly on electrical heating elements. All borosilicate glass will eventually break after a number of heat/cool cycles.

Frequently asked questions about this product

Why is this flask suitable for yeast starters but only on a gas stovetop?

It is made from borosilicate science glass, which tolerates the direct heat needed to boil DME (dried malt extract) for a yeast starter. It is rated for gas stove tops only — not electric stoves or electric heating elements, where concentrated contact heat can crack the glass. Pair it with a stir plate to keep the starter aerated and the yeast in suspension.

How should the flask be heated and cooled to avoid breakage?

Although borosilicate glass resists thermal shock well, temperature changes must be gradual. Never move a boiled flask straight into ice water — let it cool for a few minutes first. Do not boil the flask dry and do not heat it above 140°C. Cooling all glassware slowly is the most important habit for long service life.

When should the flask be taken out of service?

Never heat glassware that is etched, cracked, chipped, nicked or scratched, because these flaws concentrate stress and cause sudden failure under heat. Inspect the flask before every use. All borosilicate glass eventually breaks after many heat/cool cycles, so treat it as an item that is replaced over time.

Why use a yeast starter instead of pitching yeast directly?

A starter grows a larger, healthier yeast population before it enters the wort, avoiding the off-flavours caused by under-pitching stressed yeast. It is especially recommended for lagers, which need a high cell count to ferment cleanly. The 5000ml volume is sized for the large starters that high-gravity and lager fermentations require.

lumav_meta_description_de Der 5000-ml-Erlenmeyerkolben aus Borosilikatglas für große Hefestarter ist für den Einsatz auf dem Gasherd ausgelegt.
lumav_meta_description_en This 5000ml borosilicate glass Erlenmeyer flask is designed for large yeast starters and safe use on a gas stovetop.
lumav_meta_description_et 5000ml borosilikaatklaasist Erlenmeyeri kolb suurte pärmistarterite valmistamiseks sobib kasutamiseks gaasipliidil.
lumav_meta_description_fi 5000ml:n borosilikaattilasinen Erlenmeyer-kolvi suurten hiivakäynnistimien valmistukseen sopii käytettäväksi kaasuliedellä.
lumav_meta_description_lt 5000ml Erlenmejerio kolba iš borosilikatinio stiklo dideliems mielių starteriams skirta naudoti su dujine virykle.
lumav_meta_description_lv 5000ml Erlenmeijera kolba no borosilikāta stikla lieliem rauga starteriem ir paredzēta lietošanai uz gāzes plīts.
lumav_meta_description_sv Erlenmeyerkolven på 5000 ml i borosilikatglas för stora jäststartare är avsedd för användning på gasspis.
lumav_meta_keywords_de erlenmeyerkolben, borosilikatglas, großer hefestarter, laborglas, gasherd
lumav_meta_keywords_en erlenmeyer flask, borosilicate glass, large yeast starter, lab flask, gas stove
lumav_meta_keywords_et erlenmeyeri kolb, borosilikaatklaas, suur pärmistarter, laboriklaas, gaasipliit
lumav_meta_keywords_fi erlenmeyer-kolvi, borosilikaattilasi, suuri hiivakäynnistin, laboratoriolasi, kaasuliesi
lumav_meta_keywords_lt erlenmejerio kolba, borosilikatinis stiklas, didelis mielių starteris, laboratorinis stiklas, dujinė viryklė
lumav_meta_keywords_lv erlenmeijera kolba, borosilikāta stikls, liels rauga starteris, laboratorijas stikls, gāzes plīts
lumav_meta_keywords_sv erlenmeyerkolv, borosilikatglas, stor jäststartare, laboratorieglas, gasspis
lumav_meta_title_de Erlenmeyerkolben 5000ml · FERMETECH
lumav_meta_title_en Erlenmeyer Flask 5000ml · FERMETECH
lumav_meta_title_et Erlenmeyeri kolb 5000ml · FERMETECH
lumav_meta_title_fi Erlenmeyer-kolvi 5000ml · FERMETECH
lumav_meta_title_lt Erlenmejerio kolba 5000ml · FERMETECH
lumav_meta_title_lv Erlenmeijera kolba 5000ml · FERMETECH
lumav_meta_title_sv Erlenmeyerkolv 5000ml · FERMETECH
Weight (kg) 1.202000
High (m) 0.37
Width (m) 0.22
Length (m) 0.22
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The heart of FERMETECH is experience and scientific approach – experience dating back to 2009, which we have continuously refined. Our slogan "The Power of Science, Perfect Results" reflects our commitment to applying the best knowledge to achieve top-level outcomes. We are trusted because our operations are guided by the principle – quality and scientific precision first, then price category. Thousands of solutions based on our technology across Estonia speak for themselves, testifying that we are always there for our customers both before and after purchase. Our specialists understand that fermentation processes require both scientific precision and practical experience. That's why we offer not just equipment, but comprehensive solutions based on knowledge accumulated over years. Science-based quality, technical support, and precision are not just words for us, but real principles that guide our daily work for the benefit of all clients. FERMETECH has the same big heart as before, but now enhanced with the power of science to support your perfect results. Discover how the power of science can help you achieve perfect results in your next project.