Question 1

How much does lemon juice raise PAC and POD?

Accepted Answer

Modestly. Per 100 g of juice, POD is about 3 and PAC about 4.4, derived from its ~2.5 g of sugars (mostly glucose and fructose). Because sugar content is low, its main job is acidity and aroma, not anti-freezing power or sweetness.

Question 2

Why is lemon juice's PAC higher than its sugar amount suggests?

Accepted Answer

Its sugars are dominated by glucose and fructose, which have a high anti-freezing coefficient (about 190 on a dry basis versus 100 for sucrose). With ~2.1 g of these monosaccharides per 100 g, the juice's PAC reaches ~4.4 despite only ~2.5 g total sugars.

Question 3

Does the citric acid count toward sugars or PAC here?

Accepted Answer

No. Lemon juice holds roughly 4.5-5% citric acid, but this library derives PAC and POD only from the sugar, salt, and alcohol profile. Citric acid is part of total solids but is excluded from the sugar and coefficient math, though it still lowers pH and affects texture.

Question 4

Can I substitute bottled lemon juice for fresh squeezed?

Accepted Answer

Compositionally they are close (both ~92% water, ~5% citric acid), so balancing figures barely change. Fresh juice gives brighter, less cooked aroma; bottled juice is more consistent in acidity. Adjust to taste, not to the numbers.

Question 5

Will lemon juice make my gelato icy?

Accepted Answer

On its own, no; its low sugar means little PAC. But it is ~92% water, so large additions dilute total solids and can cause iciness. Compensate with sugars, fruit solids, or stabilizer, and keep total solids in the target range.

Parameter	Value	What it means
Total Solids	7.7%	Everything that isn't water — the backbone of body and scoopability.
Water	92.3%	Free water that will freeze; drives ice-crystal size.
Sugars	2.52%	Total sugars, the source of sweetness and freezing-point depression.
Fat	0.24%	Carries flavor and gives a rounder, warmer mouthfeel.
MSNF	0%	Milk solids-non-fat: proteins and lactose that stabilize structure.
Protein	0.35%	Binds water and helps whip in air.
POD (sweetening power)	3	Relative sweetness vs sucrose = 100.
PAC (anti-freezing power)	4.4	Freezing-point depression vs sucrose = 100 — controls how soft it scoops.

Lemon Juice (Squeezed) in gelato

Balancing parameters

Balance lemon juice (squeezed) in a real recipe

How to use it in gelato

Origin & background

Frequently asked questions

Sources

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