Steritherm DSI
Safeguard what makes your products exceptional -taste, aroma, texture, appearance, and nutritional value. Using advanced UHT treatment and direct steam injection, the Alfa Laval Steritherm™ DSI food sterilizer protects quality across liquid foods and plant-based beverages. It rapidly heats to sterilization temperature, cools quickly, and delivers consistent aseptic performance. This high-performance UHT sterilizer maximizes uptime, extends shelf life, and achieves high product integrity.
Maximize uptime and product safety with UHT treatment for liquid food and plant-based beverages
- Protect heat-sensitive products with rapid heating and cooling
- Increase uptime and reduce maintenance costs with automated diagnostics
- Ensure safety with FDA-approved verification of critical parameters
- Reduce energy costs by fully using 100% of the latent heat of steam
- Save space with a compact system that does not require a condensate return
Continuous UHT treatment enhances product stability while preserving natural taste, nutritional value, and sensory qualities of liquid foods, plant-based beverages and other heat-sensitive food products. Using direct steam injection, the Alfa Laval Steritherm DSI gently sterilizes heat-sensitive, low-acid and fouling-prone products. Rapid heating and cooling minimize browning, overcooking, and protein denaturation.
This module combines high-performance steam injection with continuous UHT processing, achieving consistent results while protecting delicate ingredients. Integrated into a complete aseptic bag-in-box production line, it supports reliable production of soups, sauces, baby foods, coconut milk, plant-based beverages, and starch-based products.
Equipped with an automated diagnostics supervision system, the Steritherm DSI improves efficiency, maximizes uptime, and supports continuous production.
Bagaimana cara kerja Alfa Laval Steritherm DSI?
Bagan aliran injeksi uap langsung
Sebelum memulai produksi, modul disterilkan di tempat (SIP) dengan uap kuliner. Setelah sterilisasi selesai, modul tetap steril dalam kondisi aseptik. Saat tangki aseptik dan/atau mesin pengisi siap menerima produk yang telah diolah, produksi dapat dimulai.
Produk masuk ke dalam tangki penyeimbang, yaitu titik masuk modul Steritherm DSI. Produk mentah dipanaskan terlebih dahulu dengan regenerasi dalam penukar panas tidak langsung hingga kira-kira 80°C (176°F). Pemanasan akhir ke suhu sterilisasi terjadi di injektor uap dengan injeksi uap makanan bertekanan tinggi ke dalam produk secara terus-menerus.
Sepenuhnya otomatis, modul mempertahankan suhu produk dan kadar air pada tingkat yang konstan. Variasi suhu diferensial lebih dari ±1 °C (± 1,8°F) akan memicu alarm.
Sterilisasi berlangsung di dalam tabung penahan, tempat produk disimpan selama waktu yang diperlukan pada suhu yang diinginkan. Produk lalu mengalir ke bejana flash, yang berada di bawah vakum. Tekanan dan suhu turun hampir seketika hingga 85°C (185°F). Kelebihan air dalam bentuk uap keluar.
Produk dapat memasuki homogenizer aseptik opsional atau langsung dimasukkan ke bagian pendinginan dari pemanas tidak langsung, di mana produk mencapai suhu pengisian yang diinginkan.
