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Five Star - Star San - 16 Ounce - Brew Sanitizer High Foaming Acid Anionic

Based on 5,066 reviews
Condition: New
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$19.98
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Availability: In Stock.
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Arrives Sunday, Nov 15
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At a glance

Condition
New
Capacity
16 fl oz
Dimensions
1.57 x 4.33 x 7.87 in; 1.4 lb
Weight
1.4 lb
Item Form
Liquid
Scent
Flavorless
Surface Recommendation
Stainless Steel
In the box
Sanitizer

Features 5

  • HIGH FOAMING- This sanitizer produces foam with little agitation for penetration into those cracks and crevices of equipment
  • CONVENIENT NO-RINSE FORMULA- With only a 30 second contact time, this sanitizer doesn't need to be rinsed off When left to dry on stainless steel at certain concentrations, it will passivate and protect the equipment
  • SAFE AND EASY TO USE - Comes in an easy dosing dual-neck bottle with built-in measurements
  • EFFECTIVE ON MANY SURAFACES- Great for use on carboys, kegs, fermentors, kettles, brewing systems, chillers, and heat exchangers

Description

Star San is an acid based no rinse sanitizer. Use only one ounce per 5 gallons of water. Star San is odorless, flavorless, and requires only one to two minutes of contact time. This product does tend to foam, which has advantages and disadvantages. The foaming action helps to sanitize cracks and crevices, but you need to allow extra time for draining. The foaming action is perfect for plastic fermenters. You can minimize the foaming effect by adding Star San to the vessel after the water has been added, and by siphoning as opposed to pouring the solution between vessels. Since Star San is acid based, contact with soft metals should be kept to a minimum. Kept in a sealed container, a Star San solution will stay effective for as long as three to four weeks. This product is only eligible for ground shipment within the contiguous United States.

Specs 22

Product Dimensions 1.57 x 4.33 x 7.87 inches; 1.4 pounds
Item model number - Star San
Manufacturer Five Star
Item Form Liquid
Scent Flavorless
Specific Uses For Product Industrial Machinery
Surface Recommendation Stainless Steel
Special Features No Rinse

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 15

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


This sanitizing solution is powerful!
Style: Sanitizer
I recently got into home brewing, and this came recommended by a friend. When fermentation is done and you transfer your liquid to bottles, you have to clean and sanitize the vessel you used for the fermentation process. Being that I’m a noob, I’ve got a gallon glass jar with a bubbler. After cleaning with regular soap and water, rinsing, and letting it dry, I use this no-rinse sanitizer as the final step in the cleaning process. Be very careful as this stuff, in liquid form, can damage your skin, your eyes, you shouldn’t breathe it in, and in general, be very careful when handling. Upon complete evaporation, it’s perfectly safe and doesn’t need to be rinsed further. It apparently loses potency and any toxic effects upon drying completely. If you’re into homebrewing, this is a definite must have for properly sanitizing your items. ... show more
Reviewed in the United States on July 1, 2026 by D. McNeil

The number one sanitizer for food grade equipment.
Style: Sanitizer
This is a great sanitizer for all brewing equipment and any other food-grade equipment.
Reviewed in the United States on July 3, 2026 by Robert Makosky

Don’t fear the foam!
Style: Sanitizer
Just ordered this for my brewing equipment and the ease of use is amazing. The amount you need for a gallon is so little that this bottle is going to last me at least a couple of years. What I love most of the internal reservoir to fill the amount you need, eliminating any other measuring cups. Just fill the reservoir in the bottle and pour it into the bowl/container and add water. The foam is amazing for peace of mind knowing that you cleaned every spot you need. And you can let it air dry and use it even if there’s still foam visible! ... show more
Reviewed in the United States on January 20, 2026 by Michael Higley Jr.

Good Result
Style: Sanitizer
Delivered on time. Product as advertised.
Reviewed in the United States on June 8, 2026 by Amazon Customer

The good bubble
Style: Sanitizer
Great no rinse sanitizer that has never caused any issues. Comes in a bottle made to help dose properly. I use it when making mead and have never had unpleasant problems. The foamy bubbles mean that it is working! Don’t fear, as it won’t effect the flavors and is totally dafe to not have to dry 100%. ... show more
Reviewed in the United States on December 4, 2025 by Andrew

Undisputed king of sanitizers.
Style: Sanitizer
It looks like a harsh chemical, and yes, the foam looks intimidating the first time you see it, but it is entirely food safe and won't affect the flavor. I’ve used it to sanitize 6 gallons so far, and have never had a negative outcome. Use a big tub that’s at least 5 gallons, so you can lay in big jugs and carboys. You only need a small amount, so this bottle will last you a very long time. This is especially true when you can just let it sit for about a week before you need to dump it and create a new cleaning solution. ... show more
Reviewed in the United States on August 8, 2026 by CM

Make sure lids are secure
Style: Sanitizer
Worked good even tho the lid had loosened in shipment and some spilled but not enough to warrant sending back
Reviewed in the United States on December 29, 2025 by virginia bullard

Unrivaled
Style: Sanitizer
Star San is unrivaled I’ve been using it for over 10 years
Reviewed in the United States on July 3, 2026 by Frank J Molinero
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