What matcha is best for lattes under $50?
Ippodo Kan, $22 for 20g ($1.10/g). Umami 8, bitterness 3, sweetness 8 — the sweetness is what survives the milk, so you still taste tea rather than green-tinted dairy. A 20g bag is 6 to 10 lattes at a 2–3g dose, which works out around $2.50 a drink. If you want a bigger bag for the same money, Kettl Hakusan at $45 for 40g ($1.13/g) is the other end of the same trade: umami 8, body 8, and enough of it to last a month of daily drinking.
What's the budget pick?
Kawahara Etenraku, $14.23 for 40g ($0.36/g). Umami 8, bitterness 4, sweetness 8, body 8 — scores that would be unremarkable at $1.50/g and are hard to explain at a third of that. It is a Japan-store price converted from yen, so it moves with the exchange rate. If you'd rather buy organic and in USD, Biroen Smile Tea Organic at $24.80 for 40g ($0.62/g) is the clean substitute: bitterness 2, soft and a little grassy, and it does not fight oat milk.
Which scores actually predict a good latte?
Bitterness and body, in that order. Above bitterness 5 the sharpness comes through the milk instead of being covered by it, and below body 6 the tea thins out into the drink and disappears. Thirty-three in-stock blends under $50 a bag clear bitterness 4 or lower and body 6 or higher. The best of them at each price step: Kawahara Etenraku ($14.23), Kagoshima Seicha Sayaka ($14.02, bitterness 2), Ippodo Sayaka ($14.28), Biroen Smile Tea Organic ($24.80), Ippodo Kan ($22), Kettl Hakusan and Suiteki ($45 each, body 8), and Marukyu Kinrin ($29.50, umami 8, bitterness 2) if you want the ceiling of what milk can carry.
What should you not buy for a latte at this budget?
Kettl Seion. It was the standing 40g recommendation here and it now costs $55 for 40g — above this guide's whole premise, and Hakusan and Suiteki sit at $45 with equal or better scores. Also skip Ippodo Wakaki: bitterness 7 is deliberate, a teaching matcha built to taste sharp, and steamed milk does not sand that off. And don't reach for Marukyu Eiju at $45.50 because the scores are gorgeous — umami 9, bitterness 1, sweetness 9 — at $2.27/g you are paying for nuance that milk erases.
Does a more expensive matcha make a better latte?
Up to about $1.25/g, yes. Kawahara Etenraku ($0.36/g, body 8) to Ippodo Kan ($1.10/g, body 7, sweetness 8) is a real change in the cup — Kan reads sweeter and rounder against milk. Past that the returns collapse: Ippodo Ummon-no-Mukashi at $1.30/g scores umami 9 and body 9 and is a better bowl than either, but whisked into 200ml of milk most of that separation is gone. Spend the difference on a larger bag of something that already works, or drink the expensive one as usucha where you can taste what you paid for.