public TeaNode getNode(String[] valuesCombination) {
		String[] strValues = new String[2];
		strValues[0] = valuesCombination[0];
		strValues[1] = valuesCombination[2];
		Double sugar = valuesCombination[1] == null ? 0
				: Double.parseDouble(valuesCombination[1]);
		for (TeaNode node : this.nodes()) {
			if(ArrayUtils.isEquals(node.valuesCombination, valuesCombination)) {
				return node;
			}
		}
		return null;
	}