Tomato
Juice

One pound of tomatoes (approximately 454g) yields roughly 350–370ml in a masticating juicer — just over 12 oz, close to a full glass. A centrifugal juicer extracts significantly less: typically 235–260ml from the same pound, or about 8–9 oz.

The gap between juicer types is larger for tomatoes than for most produce. A peer-reviewed study (Food Science and Biotechnology, 2015) found masticating juicers extracted 79.9% of tomato weight as juice, versus only 54.8% for centrifugal — a 45% efficiency gap. That difference matters if you're buying tomatoes in bulk.

About 3–4 medium tomatoes (roughly 400–450g) will produce an 8 oz cup in a masticating juicer. In a centrifugal juicer, plan on 5–6 medium tomatoes for the same amount.

Medium tomatoes weigh approximately 120–150g each. If you'd rather work by weight than count, aim for 400–450g per cup in a masticating juicer, or 580–650g in a centrifugal, and you'll be close regardless of tomato size.

A 5 lb bag (2,268g) yields approximately 1,750–1,850ml in a masticating juicer — nearly 2 quarts, or about seven to eight 8 oz glasses. The same bag in a centrifugal juicer produces closer to 1,175–1,300ml — roughly five glasses.

If you're making a weekly batch, 5 lbs covers 4–7 days at 8 oz per day depending on your juicer. For any specific quantity and juicer combination, the calculator does the math in real time.

Tomato ripeness is the single biggest variable. Overripe tomatoes have higher water content and extract more readily — peak-ripe or slightly past-peak tomatoes yield more juice than underripe ones. Tomato variety matters too: beefsteaks and romas behave differently than cherry or heirloom varieties, which have varying flesh density.

Temperature also plays a role: room-temperature tomatoes extract significantly better than cold-from-the-fridge tomatoes. The yield ranges on this page assume fresh, ripe produce at room temperature. Consistently low yields usually trace back to underripe tomatoes or cold produce — not the juicer.

Yes — and for tomatoes the effect is particularly well-documented. A 2015 peer-reviewed study found that masticating juicers produced tomato juice with significantly higher lycopene, total polyphenol, and vitamin C content than centrifugal juicers from the same tomatoes.

The mechanism is twofold: masticating juicers extract more juice (and thus more nutrients) per tomato, and centrifugal juicers introduce oxidation through high-speed blade rotation, which degrades heat-sensitive compounds like vitamin C and some polyphenols. For tomatoes — where lycopene is the primary draw — the extraction method genuinely changes what you're getting.

Yes — tomato juice is one of the most concentrated dietary sources of lycopene available. Fresh-pressed tomato juice contains approximately 8–11mg of lycopene per 100ml, which is the equivalent of roughly 7–8 medium raw tomatoes worth of the compound in a single glass.

One nuance worth knowing: lycopene in raw tomatoes is bound in the cell wall and relatively hard for the body to absorb. Juicing breaks cell walls and improves bioavailability. Heating tomatoes (cooking, canning) converts lycopene from a trans to a cis form that's even more bioavailable — but fresh juice still delivers meaningfully more lycopene per serving than eating raw tomatoes whole. Adding a small amount of fat (olive oil, avocado) to your tomato juice increases lycopene absorption further, since it's fat-soluble.

No — tomato juice is one of the lowest-sugar options in the juicing world. Fresh-pressed tomato juice contains about 2.6g of natural sugar per 100ml, compared to 8–10g for orange juice or 9g for carrot juice. An 8 oz glass contains roughly 6g of total sugar.

The glycemic load is very low. Tomato is technically a fruit but behaves more like a vegetable nutritionally — predominantly savory compounds, minimal fructose. If you're managing blood sugar or following a lower-carbohydrate protocol, tomato juice is one of the few juices that fits cleanly.

No — the skin is where much of the lycopene concentrates, and peeling would discard a significant share of the juice's primary benefit. Most juicers handle tomato skin without issue; it passes through the extraction mechanism along with the pulp.

Seeds are fine to include as well. Commercial tomato processing removes seeds to improve texture and reduce bitterness, but for fresh home-pressed juice the seeds typically pass through without affecting flavor noticeably. If you find the finished juice slightly bitter, strain through a fine mesh after pressing.

Tomato juice has a savory, mildly acidic flavor profile that pairs well with vegetables more than fruits. The classic combination is with celery — the sodium and mineral profile in celery juice complements tomato's lycopene base without competing with it. Cucumber juice lightens the flavor and dilutes the intensity for a more refreshing result.

For a more complex blend, beet juice adds earthiness and natural sweetness that rounds out tomato's acidity. Ginger, basil, and black pepper are traditional flavor additions. If you want something closer to a Bloody Mary base, add horseradish and lemon.

Fresh-pressed tomato juice lasts 24–48 hours refrigerated in an airtight container. After that, flavor degrades and oxidation accelerates — you'll notice the color dulling and a faint fermented note developing by day three.

Masticating juicers produce juice with lower oxidation from the start, which gives it slightly better shelf life than centrifugal-pressed juice. If you're batch-making, fill containers to the top (minimal air contact) and aim to use within two days. Freezing works well for longer storage — freeze flat in zip bags and thaw overnight in the fridge.

In practical terms, no — there's no defined toxicity threshold for tomato juice, and the lycopene and vitamin C it delivers are water-soluble or safely accumulated at normal intake levels. That said, two caveats apply.

First, sodium: commercially produced tomato juice typically contains 400–600mg of sodium per cup from added salt. Fresh-pressed juice has very little natural sodium (~15mg/100ml), so this is only a concern with commercial products. Second, tomatoes are high in oxalates — people prone to kidney stones should limit high-oxalate foods including tomatoes, though the risk at normal serving sizes is low. For most people, 8–16 oz of fresh tomato juice daily is well within a reasonable range.