DetailsA larger size for larger batches of beer, or higher gravity beers. Sometimes you just need a big yeast starter for a big beer. The correct sized stopper is available in the related products section on the left. Currently this flask uses a 9.5 stopper. Do not apply direct heat to the flask.
- Details & Instructions
Height 10.5" Diameter 6.5"
4.4 / 5.033 ReviewsNice sizeI like to make my starters in this flask, it works great.March 31, 2017Purchased
1 year agoGood size for yeast startersIts actually a little larger than my old flask, so there is less chance of a boil over. It's not as thick so it can break more easily.April 5, 2014Good for making a starterIt has more interior volume than my other 2 liter flask. The glass is not as thick but so far it still works fine on the gas stove then after a minute on a oven mitt, it goes into the sink.February 3, 2014Good size for starters1000 ML is too small, this is a good size. _x000D_I use it on a gas stove without problems, _x000D_I will say it's a little thinner than my friends flask, so it's not as sturdy or well made.December 9, 2013My second flaskIts a little thinner (i.e more breakable) than my other flask, but I got it so I'd have a back up. If you really want to brew well, you need to make a starter. IF you want to make a starter you need a flask and a stir plate._x000D_November 1, 2013TolerableIt will work for making 2 liter starters but isn't as good as my old flask which was thicker. This flask is more likely to break and I worry when I heat it on the stove flame that it will crack. When I take it off teh flame, I put it on a mat for a few minutes so it cools a little, then put it in room temperature water, to minimize thermal shock. I checked the measuring lines and they are slightly off too.September 21, 2013Not the bestI have a lab grade flask that I compared this one too._x000D__x000D_1 - this flask is not as thick as the lab grade flask. I hope it can withstand the thermal shock of boiling my starter in it (gas heat), then moving it to cold water. In any case it seems more fragile._x000D__x000D_2 - the volume markings are incorrect. They read more volume than is actually in the flask. I know this by measuring with my other flask and with a measuring cup. The 1000 ML marking is 1/8 of an inch too low. The 2000ML marking is 1/4 inch too low._x000D__x000D_3 - on the plus side, it has a little more head space, so boil overs will be less likely to occur._x000D__x000D_4 - the bottom is not flat, its curved like a very shallow dome, so the stir bar may get thrown at higher speeds._x000D__x000D_I can not recommend this flask for making yeast starters. I would pay an extra $4 and get a better one.August 13, 2013Good for making a starterI boil my starter in this flask using gas, take it out and set it on a mat for a few minutes, then put it in a sink with tap water. It can withstand the thermal shock. I am careful not to bank it and set it down on mats just in case. So far so good.August 4, 2013this size is just right.I like this flask. It is perfect for my stir plate and any starter size for 5 gallon batches. I do not like using this for the boiling of starter wart. I sanitize it separately. I like using a sauce pan with a pour spout. The sauce pan is a lot safer because it is open. The smail neck on this thing causes boil overs for almost any time you touch it or put something in it. I have never had sanitation problems by just soaking it in StarSan solution while I boil in the sauce pan. I have burn marks on my hands from the three times I tried boiling in the flask. Never again! Still a great item. Don't forget an oxygen system and some yeast nutrient.August 4, 2013Needed to make a yeast starter with a stir plateI put mine directly on the oven flame and when its done give it a minute to cool, then put it in cold water. When its cool, I put it on a stir plate. Never had a problem.June 18, 2013
- Customer Q&A
Browse 2 questions Browse 2 questions and 4 answersCan you heat wort in it on the electric stove?BEST ANSWER: We do not recommend using them with an electric stove. Always a good idea to use it in a pot of water to heat it.What SIZE FOAM STOPPER DOES THIS FLASK USE?BEST ANSWER: I don't recommend foam stoppers. When you use the flask to grow yeast, foam stoppers tend to prevent the introduction of air which is very important. Instead use a sterilized aluminum foil square.