Homemade lemon electrolytes

Sun Salt

A little jar of material abundance.

Eight food-grade ingredients. Bright lemon. Mixed once, ready whenever water needs a little more sun.

Make it in GermanyMake it in the US
Justin holding the first jar of homemade Sun Salt, a pale lemon mineral powder in a glass jar with a bamboo lid and handwritten label.
First batch · Berlin · July 2026
≈800 mgSodium
400 mgPotassium
50 mgMagnesium
60 mgCalcium

Why make it

The how got cheap.

Electrolyte tubs cost around fifty euros. I wanted the minerals and the ritual, but I also wanted to know what every ingredient was doing there.

I supplied the what and the why. Duncan researched the formula, sourced both regional versions, and did the arithmetic. We mixed the first jar in a Berlin kitchen. It tasted excellent.

Choose your pantry

Two regions. The same drink.

Ingredient strength changes between suppliers, especially magnesium. Follow the formula for the country where you are buying it.

The full Berlin jar

Germany

120 servings6.0 g per drink722.0 g batch

One drink: 6.0 g in 750 ml to 1 L of water.

SodiumRedmond Real Salt, fine454 g
247.2 gAmazon ↗
PotassiumPotassium citrate, 36% potassium1 kg
133.2 gAmazon ↗
MagnesiumMGX magnesium malate350 g
38.6 gAmazon ↗
CalciumCalcium carbonate E1701 kg
18 gAmazon ↗
Main acidCitric acid E330900 g
198 gAmazon ↗
Secondary acidTartaric acid E334500 g
54 gAmazon ↗
LemonWhole-lemon powder100 g
30 gAmazon ↗
SweetenerStevia Reb-A 98%25 g
3 gAmazon ↗

Eight food-grade ingredients from Amazon.de. The bulk packages make more than one batch.

The full US jar

United States

90 servings6.0 g per drink540.7 g batch

One drink: 6.0 g in 24 to 34 fl oz (700 ml to 1 L) of water.

SodiumRedmond Real Salt, fine454 g · $8.24
185.4 gAmazon ↗
PotassiumPotassium citrate FCC/USP1 kg · $24.99
99.9 gAmazon ↗
MagnesiumBulkSupplements magnesium malate + oxide250 g · $19.97
28.125 gAmazon ↗
CalciumBest Naturals calcium carbonate454 g · $12.95
13.5 gAmazon ↗
Main acidViva Doria citric acid907 g · $9.99
148.5 gAmazon ↗
Secondary acidCAPYBARA tartaric acid226.8 g · $8.99
40.5 gAmazon ↗
LemonKOYAH whole-lemon powder119 g · $29.99
22.5 gAmazon ↗
SweetenerPyure stevia extract25 g · $10.99
2.25 gAmazon ↗

The July 12 ingredient cart was $126.11 before tax. One batch uses about $18.39 of it, or 20¢ per serving.

The US magnesium amount follows the current label: 400 mg elemental magnesium per 2.5 g powder. Supplier formulas change, so recheck the label before remaking the jar.

One bowl. One jar.

Mix it without drama.

The only precision tool you need is a digital kitchen scale that reads to at least 0.1 g.

  1. 01

    Start with a large bowl, whisk, funnel, airtight jar, dry spoon, and a scale precise to 0.1 g. Keep every tool completely dry.

  2. 02

    Set the bowl on the scale. Add the first ingredient, then press tare before adding the next one.

  3. 03

    Continue through all eight ingredients. Do not estimate the magnesium, potassium, or stevia.

  4. 04

    Whisk slowly for two full minutes, scraping the bottom and sides. Keep the powder low so you do not breathe the dust.

  5. 05

    Let the dust settle. Funnel the blend into a dry airtight jar.

  6. 06

    Close the jar and gently roll it for 30 seconds. Store it sealed and use only a dry spoon.

  7. 07

    For one drink, stir 6.0 g of the German blend into 750 ml to 1 L of water, or 6.0 g of the US blend into 24 to 34 fl oz (700 ml to 1 L).

The US batch

Twenty cents a drink.

That is ingredient use, not the first bulk order. The pantry lasts far beyond one batch.

$0.20Sun Salt$0.77Re-Lyte$1.50LMNT

Read before mixing

This is a high-sodium formula.

Sun Salt is not a substitute for plain water, varied food, or medical care. Use it according to your fluid and sweat needs rather than treating more minerals as automatically better.

Kidney disease, heart failure, sodium-sensitive hypertension, or medicines that raise potassium require a clinician's guidance. If you take lithium, ask your prescriber before making meaningful changes to sodium or fluid intake. No medication belongs in the bulk jar.