Calculating Small Batch Star San

Does anyone have a guide for making small amounts of Star San. Is there a set formula.

1oz/5g, .5oz/2.5g

I have 6cc written on my bottle for 1g batches.

1oz = 29.xxxx cc(ml). So 1g would be ~6cc (ml). Check with a pharmacy for a syringe (infant medicine).

[quote=“Nighthawk”]1oz/5g, .5oz/2.5g

I have 6cc written on my bottle for 1g batches.

1oz = 29.xxxx cc(ml). So 1g would be ~6cc (ml). Check with a pharmacy for a syringe (infant medicine).[/quote]

And to extend that down one level further, a quart gets 1.5mL. I have an oral syringe that I use for making 1-quart batches in a spray bottle.

I fill my empty growlers to have starsan on hand, so. . .

if 1oz/5gal

then

1/2 gal = 1/10th of 5gal

1/10th of 1oz = 0.6 teaspooons

I just dump in a hair over 1/2 tsp. (also equals 1/8th of a cup).

[quote=“tmac”]I just dump in a hair over 1/2 tsp. (also equals 1/8th of a cup).[/quote]1/2 tsp = 1/96 of a cup.

1/2 tbsp, on the other hand, is a quarter ounce.

What I do is fill 2 mason jars when I have a 5g batch made. It lasts at least as long until the next 5g batch of starsan is made.

This I use to refill airlock, fill thief jar to sanitize thief. And so on…
:cheers:

I dont recall ever seeing a 1/2 Tablespoon measuring device, although 1 1/2 Teaspoons = 1/2 Tablespoon

1oz = 2 Tablespoons = 5 Gallons Sanitizer
1/2oz = 1 Tablespoons = 2.5 Gallons Sanitizer
1/4oz = 1 1/2 Teaspoons = 1.25 Gallons Sanitizer
1/8oz = 3/4 Teaspoon = 0.625 Gallons Sanitizer
1/16oz = 3/8 Teaspoon = 0.3125 Gallons Sanitizer / 40oz Sanitizer

I dont recall ever seeing a 1/2 Tablespoon measuring device, although 1 1/2 Teaspoons = 1/2 Tablespoon[/quote]

The spoon I use has both of those written on the handle.

1 oz = 2 tablespoons.

1 oz = 2 tablespoons. [/quote]
You are correct Sir.

I should focus more on my NB posts and less on work.
:mrgreen:

Much obliged. I never thought of the kids medication syringe. I have a few of those in the cabinet now.

You are correct. I converted 0.0125C wrong in my head

1/2 tsp should still be about right for 1/2 gal. Well, a heavy 1/2 tsp.