New Zealand's milk production has plateaued but is not at its peak yet, according to Coriolis consultancy principal Tim Morris. The annual increase in milk per cow has remained consistent at 1% for the past 50 years, and with fewer cows, milk production is expected to rise again when farmers receive the necessary market signals. Factors such as rising input costs and the trend towards larger farms have contributed to the stall in production. Despite these challenges, Morris believes that New Zealand will produce more milk in the future. The article also touches on safety concerns regarding methane inhibitors, highlighting the need for more research.