Milk, standard, 2 litres priced in Bitcoin: 2015 to 2025

Milk, standard, 2 litres (per 2L) cost NZ$3.45 in 2015 and NZ$4.60 in 2025, a change of +33% in New Zealand dollars across 10 years. The figures are annual averages from Stats NZ food price index, average retail price, standard milk 2L. The fiat peak in this series came in 2025 at NZ$4.60.

Priced in sats, the same item went from 877,863 sats to 2,621 sats, a change of −99.7%. The conversion uses the yearly average BTC price for each matching year, never a rate from a different era. The least flattering single step for the sats series was 2021 to 2022, when this item moved +62% in sats terms. Short windows can and do run against the holder; the direction across the full series is what the chart shows.

In the country that exports more dairy than any other, the local price of milk tracks the global auction, not the local cow.

One grocery line proves nothing on its own. Repeated across the whole basket on the main page, the pattern stops looking like noise and starts looking like a property of the unit of account.