Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Monday, January 21, 2013

Step 3: Washing


All apples were washed in cold water to remove any dirt from the orchard and storage.

Washing of the apples

Monday, January 14, 2013

Step 1: Harvest



Without apples there would be no cider. Apples are the one and only ingredient and the quality are therefore highly important as it is reflected in the final wine. Optimal management of the orchard ensures this. However this project focuses only on the enology part and viticulture would therefore not be discussed in details.

250 Danish apples varieties are available at Pometet (the national Danish collection of apples) were I do my studies. The harvest was done before I started my project and I was therefore not able to define on my own what apples to use. Among the harvested apples I decided to work with Ingrid Marie, Ildrød Pigeon, Dronning Louise (Queen Luoise), sukkeræble fra Vaalse (sugar apple from Vaalse) and det søde æble fra Aalsrode (the sweet apple from Aalsrode). Furthermore I added Aston Brown Jersey as a cider reference apple for my experiments. All apples would be described in more details later on.

I will therefore work with the following batches:
  • Ingrid Marie, traditional approach
  • Ingrid Marie, modern approach
  • Ildrød Pigeon, traditional approach
  • Ildrød Pigeon, modern approach
  • Dronning Louise, traditional approach
  • Dronning Louise, modern approach
  • Sukkeræble fra Vaalse mixed with søde æbler fra Aalsrode, traditional approach
  • Sukkeræble fra Vaalse mixed with søde æbler fra Aalsrode, modern approach
  • Aston Brown Jersey, traditional approach
  • Aston Brown Jersey, modern approach

Monday, January 7, 2013

Experimental Design: How to Make Cider?


Denmark has no cultural understanding or approach to cider making so let us define on our own how to make cider.

Traditionally cider is produced by fermentation of a nutrient poor apple must. The poorness is do to the clarifying process step known as Keeving where nutrients are trapped in a pectin gel and removed from the juice. Without nutrients yeasts will to ferment and this results in a cider with a residual of sugar. This technique has been practiced for centuries in cider producing countries as France and England. So should we just stop here and implement this technique in Danish cider making as well? No. The traditional approach to winemaking is radically different from the modern wine industry: Here wines are produced under optimal conditions regarding nutrition’s, temperature, time, and so on.

There is a clash between these two techniques. So how to produce Danish cider? What is the most optimal for our varieties? During my experiments I will challenge the way to make cider and therefore do it by a modern approach and a traditional approach. The figure above illustrates the two approaches.