Reddit reviews American Labs 2000ml / 2L Narrow Mouth Erlenmeyer Flask with Heavy Duty Rim

If I were to start over and buy new equipment, one of those all-in-one systems would be very attractive. My only concern with them is I don't have a high voltage outlet and I wouldn't want to deal with an under powered system.

For a traditional system I'd do something like this:

• $ 55 Hot Liquor Tank
  
• $105 Mash Tun
  
• $240 Kettle
  
• $100 Burner
  
• $200 Fermenter
  
• $250 Ferm Chamber
  
• $ 35 Temp Controller
  
  Total $985
  
  Bonus Upgrades:
  
  
• $ 25 Dolly
  
• $120 Water Filter
  
• $110 Grain Mill
  
• $ 15 Flask
  
• $ 30 Stir Plate
  
• $ 20 Yeast Ranch
  
• $490 Kegerator
  
• $ 95 Keg
  
  Total $905
  
  And you'll want various fittings and hoses and more kegs and a stir paddle.

Explosive Elephant Toothpaste!! edited to correct ingredient - and update notes

My goal was big, shooting foam steams! I tried other methods and recipes - but this worked best!

What is happening in elephant toothpaste: hydrogen peroxide is made up of two hydrogen and two oxygen molecules. This is one extra oxygen molecule than water. Hydrogen peroxide is very unstable; it keeps wanting to lose that extra oxygen molecule. In this experiment, we use potassium iodide as a catalyst to knock off that extra oxygen molecule very quickly, and soap to capture those molecules of oxygen in foam.

I tried this with two different flask types: 2L Erlenmeyer flask and 2L graduated cylinder.

For each flask I needed the following:

• 250ml 35% H2O2 (hydrogen peroxide)
  
• 50ml 4 molar KI (dry, granular potassium iodide)
  
• a bit of dish soap
  
  To get (my best approximation of) 4 molar KI, I put 35 mg of nearly-pure granular KI in a small glass measuring beaker, and filled it to 50 ml with cool tap water.
  
  If you use smaller flasks, you will need to cut the ingredients by about 1/2.
  
  I was able to buy the chemicals and all the flasks online. Please be careful with the hydrogen peroxide – it will burn your skin at this concentration.
  
  The result is soapy water - but there may be some residual hydrogen peroxide. Simply rinsing the area well should be sufficient.
  
  Steps:
  
  Pre-make the KI solution, and measure out all other chemicals.
  
  USING GLOVES AND EYE PROTECTION
  
  -- Put 250ml H2O2 in each flask
  -- Put ~25-30 ml of dish soap in each flask
  -- Add a few drops food coloring of color desired (complicates clean-up - be warned!)
  -- QUICKLY add 50 ml KI solution to each flask and jump back!
  
  Notes:
  
  The graduated cylinder produces a thick pillar of foam, the Erlenmeyer flask produces more of a jet.
  
  The chemicals should be added by an adult.
  
  If you film this, be sure to have the person filming stand back, and be prepared to capture an 8 to 10 foot jet coming out of the flask.
  
  Shopping list (what I used):
  
  This puts out a thick column of foam:
  213I16 Karter Scientific 2000ml Glass Graduated Cylinder, Single Metric Scale ‪https://www.amazon.com/dp/B006UKIBKU/ref=cm_sw_r_cp_api_8OuWxbG8YRB8N‬
  
  This puts out a narrow/taller jet of foam - I now have three:
  2000ml / 2L Narrow Mouth Erlenmeyer Flask with Heavy Duty Rim ‪https://www.amazon.com/dp/B00Q34D0HC/ref=cm_sw_r_cp_api_rQuWxb4708ZVJ‬
  
  Pure Health Discounts Certified 35% Hydrogen Peroxide with 1 oz Bottle Dropper - 32 oz https://www.amazon.com/dp/B01AKIGJW4/ref=cm_sw_r_cp_api_YD4pzbZTGXC86
  
  Potassium Iodide, High Purity Crystals, 99.8 % min., 100 grams ‪https://www.amazon.com/dp/B008D8161I/ref=cm_sw_r_cp_api_PTuWxb0N94SZQ‬
  
  Atlas Glove 620 Atlas Vinylove 12" Double Dipped Gloves - Small (they come in different sizes) ‪https://www.amazon.com/dp/B002PJ0WRK/ref=cm_sw_r_cp_api_nUuWxbSQCV77N‬
  
  Learning Resources Primary Science Safety Glasses (good size for kids) ‪https://www.amazon.com/dp/B006ZLSWFI/ref=cm_sw_r_cp_api_SVuWxbBKKKD9R‬
  
  Heathrow Scientific HD15909 Spatula with Flat End and Spoon End, 9" Overall Length (optional - but good for mixing the potassium iodide) ‪https://www.amazon.com/dp/B0061OT1A4/ref=cm_sw_r_cp_api_qSuWxbA6R27C3‬
  

I like these when they get in stock

http://www.amazon.com/gp/product/B00Q34D0HC/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

Couldn't be happier for the price, although the KIMAX 2L I have is higher quality.

2000ml / 2L Narrow Mouth Erlenmeyer Flask with Heavy Duty Rim - $14.99

^12/21/2016 ^12:47pm ^EST

http://www.amazon.com/2000ml-Narrow-Mouth-Erlenmeyer-Flask/dp/B00Q34D0HC/ref=sr_1_6?ie=UTF8&qid=1422240235&sr=8-6&keywords=large+erlenmeyer+flask

because you want glass it makes it difficult but you can prolly just use some sort of drill bit and stick a hose adapter in there? that'd be my suggestion